Past Perfect: 'Déjà Vu' Is
Dazzling Trip Back in Time
With Hugely Likable Denzel

"Dazzle me," one super-smart techie says to another in "D&eacute;j&agrave; Vu." They're working with a new surveillance technology, dubbed Snow White, that can peer into the past and call up living images from four days ago. Well, that's pretty dazzling, as snoopery systems go: NSA, eat your heart out. And "D&eacute;j&agrave; Vu" is pretty dazzling, as action adventures go, even when it's wildly, almost defiantly, implausible. Movies can make us semi-believe the damnedest things.